You don't have to buy it each time, they bring old games to new platforms for people who didn't play it before. If you decide to buy a game in 240p, 480p, 720p, 1080p & 4k version then it's up to you.
I don't care, the people who make the games probably care and they would have every right to care.
Sure, I understand that. Pretending that it's justified because "I'm poor & they are greedy" is just fooling yourself. Pirate or don't it makes no difference to me.
It's not so black and white, some pirates can afford to buy the games they play. Just because they can.
I'm lazy and use this for setting up and switching between real card and sdvita.
https://github.com/theheroGAC/TF-Card-Plugin-Tool